Malicious PDF — malware analysis report

Static analysis result for SHA-256 38d7f7a784800f97…

MALICIOUS

PDF

38.2 KB Created: 2020-08-23 23:52:22 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 4bd4968edae34595d69068da3a848c28 SHA-1: 864fc6f47b5be1df98edba0daef10c48fbdf6b26 SHA-256: 38d7f7a784800f97cc63ee1d9414f92074387485691e045246e5960ced4c74cb
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF contains a mass link farm, with many links pointing to benign Shopify URLs but one critical link to a known malicious redirector. This redirector is likely used to obscure the final malicious destination. The document body contains garbled text but includes the suspicious URL, suggesting an attempt to disguise malicious content within a seemingly legitimate document.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 5

  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • Image lure linking to an SEO redirector (free-download phishing) high PDF_SEO_UTM_REDIRECTOR_LINK
    PDF embeds an image with little or no body text and a clickable link to a multi-word utm_term / FeedBurner-proxied SEO redirector — the 'free ebook / solution-manual / document download' phishing family that ranks for natural-language search queries and routes the user into a payload/redirect chain. The PDF carries no exploit; the risk is the linked destination. Flagged structurally (image lure + SEO redirector) so it does not depend on a ClamAV/ML signature, and regardless of how many filler text pages the lure carries.
  • Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTAL
    The same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
  • Embedded URL info EMBEDDED_URL
    One or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.
    URL https://ttraff.ru/pify?keyword=android+parseint+exception In PDF document text
    • http://vazedib.thebarcrossfit.com/uploads/1/3/2/7/132710797/6978442.pdfIn PDF document text
    • http://files.beestonartsmanagement.com/uploads/1/3/0/7/130775977/8521535.pdfIn PDF document text
    • http://files.inspiralnyc.com/uploads/1/3/1/3/131383777/d7ccbd72b72.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/7487/0689/files/bodybuilding_exercises_pictures_training.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/0513/2445/files/30772154169.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/1682/9603/files/joomla_template_zip_file.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/1712/3486/files/77923272292.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/0202/6393/files/39682944266.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/4446/8898/files/sheetrock_premixed_all-_purpose_drywall_joint_compound.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/9273/0275/files/attachment_style_questionnaire_feeney.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6240/2965/files/41946285746.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/9384/3358/files/arval_service_auftrag.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0446/8817/9353/files/assistant_property_manager_resume.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/1411/1903/files/ronijugirogukud.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/1326/6846/files/47760714931.pdfIn PDF document text
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
    • http://purl.org/dc/elements/1.1/In PDF document text
    • http://ns.adobe.com/pdf/1.3/In PDF document text
    • http://ns.adobe.com/xap/1.0/In PDF document text
    • http://ns.adobe.com/xap/1.0/mm/In PDF document text
    • http://ns.adobe.com/xap/1.0/rights/In PDF document text
    • http://scripts.sil.org/OFLIn PDF document text
🗂 Part of campaign: inspiralnyc.com 3 samples

Related samples 2

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000058cb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x58CB 5092 bytes
SHA-256: 96b21ea3d29710f24ed037867999b0cefcaa1a4fa683b03a5695d65916b7b92c
font_01_sfnt_off00006a21.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6A21 9992 bytes
SHA-256: a05f886de05fca6e52d42fe9b100fb93a9ea3e92f93830559a94885ade5240e0

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